Rivera was confirmed dead following a boating trip with her son four years ago this week.

Heather Morrisstill has a lot of love for her lateGleecostarNaya Rivera.

On Monday, Morris marked the fourth anniversary ofRivera’s deathwith aloving tribute on Instagram.

Heather Morris, Naya Rivera

Naya Rivera and Heather Morris were good friends.Trae Patton/NBCU Photo Bank/NBCUniversal via Getty Images

The boy had been found drifting alone in a pontoon his mom had rented.

Over the years, Rivera’s former castmates have remembered her as “a light.”

“Just such youth,” she toldE!

Newsat a red carpet event.

“They were so excited, as we all were.

We knew that we were breathing rarefied air when the show became such a big hit.”

She added, “There’s a big hole in our lives because of that.”